Seahorses are small sea fishes in the genus Hippocampus (hippos meaning "horse", kappos meaning "sea monster" from the Ancient Greek). There are 54 species of them. Their head and neck resemble a head and a neck of a horse. Seahorses have segmented bony armor a prehensile tail.

Seahorses usually dwell in shallow tropical and temperate waters throughout the world.

Unlike any other animals in the world, the male seahorses become pregnant. Females insert their eggs through an oviduct into the male's brood pouch. The male wiggles to get the eggs into position. Once all the eggs are inserted, the male goes to a nearby coral or seaweed and grabs on with his tail to wait out gestation, which may last several weeks. When it's time to give birth, he'll contort his body in contractions, until the young are born, sometimes over a period of minutes or hours. Baby seahorses look just like miniature versions of their parents.

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